Finding the Third Proportional to 40,378.50 and 57,799.13

Step by Step Solution

1. Step 1: Write the proportion equation
   40,378.50 : 57,799.13 = 57,799.13 : x
2. Step 2: Convert to fraction form
   40,378.50/57,799.13 = 57,799.13/x
3. Step 3: Cross multiply
   40,378.50x = 57,799.13 × 57,799.13
4. Step 4: Simplify right side
   40,378.50x = 3,340,738,850.77
5. Step 5: Solve for x
   x = 3,340,738,850.77/40,378.50
6. Step 6: Final answer
   x = 82,735.59